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Structural performance evaluation of square hollow section column under compressive axial force with bending moment having different width‐thickness ratio
Author(s) -
Hayashi Takuro,
Sato Atsushi,
Yoshioka Shimpei
Publication year - 2021
Publication title -
ce/papers
Language(s) - English
Resource type - Journals
ISSN - 2509-7075
DOI - 10.1002/cepa.1559
Subject(s) - structural engineering , bending moment , plastic hinge , bending , moment (physics) , flexural strength , materials science , limit state design , ductility (earth science) , plastic bending , square (algebra) , deformation (meteorology) , hinge , pure bending , composite material , engineering , bending stiffness , geometry , mathematics , creep , physics , classical mechanics
The square hollow section (SHS) is commonly used for the column of the steel building structures in Japan. The moment‐resisting frame will resist the lateral force with the flexural manner of the columns. Under the seismic event, the bending moment will be significant, and the plastic hinge may be formed in the columns. It is crucial to understand the structural behavior at the component level to capture the structure system's ultimate limit state by computational simulation. Understanding the strength and the ductility is one of the essential aspects, but it is also crucial to know the structural elasto‐plastic behavior until the ultimate limit state. It is worthwhile to conduct the testing of the members under combined loading conditions. In this paper, the test results obtained from the different width‐thickness ratio SHS were reported. The forces subjected to the specimen were axial force and cyclic bending moment; therefore, the member was under combined loading condition. Collapse mode, maximum bending moment, and plastic deformation capacity were evaluated in consideration of the effect of the width‐thickness ratio; comparison study between the current design recommendation was also shown.